CCRN (Adult) - Direct Care Eligibility Pathway CCRN-Adult Exam Questions
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Which of the following is the most common prerenal cause of acute tubular necrosis?
Correct Answer: A
Shock is the most common prerenal cause of acute tubular necrosis (ATN). In the context of prerenal conditions, shock leads to decreased renal perfusion and subsequent ischemia, which can cause damage to the renal tubules. Other options such as blood transfusion reaction, crush injury, and beta-hemolytic streptococcal infection can lead to renal damage but are not the most common prerenal causes of ATN. References : CCRN Exam Handbook, AACN, page 28, section on Renal/GU.